package 面向对象.课堂练习;

/**
 * @author IT_Jay
 * @date 2022/1/7 7:40 AM
 */
public class MoNiTest {
    public static void main(String[] args) {
        for (int i = 1; i < 5; i++) {
            int j = 0;
            while (j<i){
                System.out.println(j+" ");
                j++;
            }
        }
    }
}
